Head to Head
| Spain Primera Division RFEF Group 1 | 2023/12/17 11:00 | Real Sociedad B v Real Unión | D | 2-2 |
| Europe Friendlies | 2023/08/16 17:00 | Real Sociedad B v Real Unión | L | 2-1 |
| Spain Primera Division RFEF Group 2 | 2023/02/11 18:00 | Real Sociedad B v Real Unión | L | 2-0 |
| Spain Primera Division RFEF Group 2 | 2022/10/22 17:00 | Real Unión v Real Sociedad B | L | 0-1 |
| Europe Friendlies | 2022/08/06 09:30 | Real Unión v Real Sociedad B | W | 2-1 |
| Spain Segunda B Group 2 | 2021/02/20 17:30 | Real Unión v Real Sociedad B | W | 3-1 |
| Spain Segunda B Group 2 | 2020/11/22 11:00 | Real Sociedad B v Real Unión | W | 0-1 |
| Spain Segunda B Group 2 | 2019/12/15 16:00 | Real Unión v Real Sociedad B | D | 2-2 |
Home History
| Spain Primera Division RFEF Group 1 | 2024/03/09 15:00 | Rayo Majadahonda v Real Unión | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2024/03/03 14:00 | Real Unión v Barcelona B | D | 0-0 |
| Spain Primera Division RFEF Group 1 | 2024/02/24 15:00 | Sabadell v Real Unión | L | 1-0 |
| Spain Primera Division RFEF Group 1 | 2024/02/18 11:00 | Real Unión v Celta Fortuna | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2024/02/10 15:00 | Gimnastic v Real Unión | L | 2-1 |
| Spain Primera Division RFEF Group 1 | 2024/02/03 19:00 | Real Unión v Lugo | D | 0-0 |
| Spain Primera Division RFEF Group 1 | 2024/01/27 15:00 | SD Tarazona v Real Unión | W | 0-1 |
| Spain Primera Division RFEF Group 1 | 2024/01/21 11:00 | Real Unión v CD Arenteiro | L | 1-2 |
Away History
| Spain Primera Division RFEF Group 1 | 2024/03/09 19:00 | Real Sociedad B v UE Cornella | L | 1-2 |
| Spain Primera Division RFEF Group 1 | 2024/03/02 17:00 | Real Sociedad B v SD Logrones | W | 1-0 |
| Spain Primera Division RFEF Group 1 | 2024/02/24 17:00 | Ponferradina v Real Sociedad B | L | 2-0 |
| Spain Primera Division RFEF Group 1 | 2024/02/17 17:00 | Real Sociedad B v Sabadell | L | 0-1 |
| Spain Primera Division RFEF Group 1 | 2024/02/11 17:00 | Rayo Majadahonda v Real Sociedad B | D | 1-1 |
| Spain Primera Division RFEF Group 1 | 2024/02/04 15:00 | Real Sociedad B v Gimnastic | L | 0-2 |
| Spain Primera Division RFEF Group 1 | 2024/01/27 18:00 | Lugo v Real Sociedad B | L | 1-0 |
| Spain Primera Division RFEF Group 1 | 2024/01/21 15:00 | Barcelona B v Real Sociedad B | L | 2-1 |